# 🌡️ Does the Amazon Smart Thermostat require a C-wire?

*Published: 2023-12-08 | Updated: 2025-01-31 | Source: https://shopsavvy.com/answers/does-the-amazon-smart-thermostat-require-a-c-wire*

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## Product: Amazon Smart Thermostat
**Brand:** Amazon

Yeah, the Amazon Smart Thermostat needs a C-wire (common wire) to work properly. This is mentioned in the manufacturer's product description. If you don't have one, you can either install a C-wire or use a [power adapter kit](https://www.shopsavvy.com/redirect?url=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3Dpower%2Badapter%2Bkit%26tag%3Dssw.ans.tx-1-20) that's sold separately. 

This is important to keep the thermostat's smart features, like Wi-Fi and [Alexa](https://www.shopsavvy.com/redirect?url=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3Dalexa%26tag%3Dssw.ans.tx-1-20) interaction, running smoothly. Our research shows this comes up a lot—both users and professional reviewers point out that the C-wire is key for performance.

If your home doesn't have a C-wire, you can either do some wiring work yourself or hire a pro. The manufacturer provides detailed instructions if you want to give it a try, but if you're not comfortable with electrical stuff, a professional might be the way to go. They'll make sure everything's set up safely and correctly.

So in short, yes, the Amazon Smart Thermostat does require a C-wire. If your current setup lacks one, you'll need to sort that out for the best experience.

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
| wellsllc.square.site | $20.00  | Check |
| Bonanza | $21.99  | Check |
| Shop.com | $36.40  | Check |
| Amazon | $55.99  | Check |
| Best Buy | $55.99  | Check |
| Mercari | $75.00  | Check |
| NFM | $79.99  | Check |
| Instacart | $85.98  | Check |

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*Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from thousands of retailers, and analysis of user reviews to give you a well-rounded picture.*